Traceback (most recent call last):
While I do not know a lot about this "OpenFOAM", it seems like it is a language or library designed to run on blender in order to generate meshes. According to the error, it says ZeroDivisionError: Float division by zero.

This is Python's (language blender is coded in) way of telling you that you are trying to divide a number by 0. I recommend checking your OpenFOAM code for instances where you do such a thing. The error also points you to the line of code that threw the error, so you might want to look at that closely.